Improved malaxator for the preparation of plastic materials for artificial stone



' PATENT-ED DEC. 21, 1869.

I P. COIGNET. MALAXATOR FOR THE PREPARATION OF PLASTIC MATERIALS FOR ARTIFICIAL STONE AND FOR OTHER PURPOSES.

77? 72: away;

UNITED. STATES PATENT OFFICE.

FRANCOIS corennr, 0F rams, FRANCE.

.IMPROVED MALAXATOR FOR THE PREP ARATl0N or PLASTIC nrems FOR ARTIFICIAL suits.

'AND FOR OTHER PURPOSES.

Specification forming part oi Letters Patent Ne.98,0 35. dated December 21. 1869;

To all idiom it may concern Be it known that I, Fuaugo'rs COIGNET, of the city of Paris, in the department of La Seine an'd"'Empire of France, have invented certain Improvements in Apparatus for the Manufacture of Agglomerates or Artificial Stone; and I-do' hereby declare that the following isafull and exact description of thesame, having'rcference to the accompanying drawings, forming part of. this specification. in which-'-- p 4 Y Figure 1 represents a sectional elevation of one of my improved nalaxators through the longitudinal axis of one of its twin helices. Fig.j 2 'represents atop view or-plan of the same, having -part ,of the top-broken to show inside'work; and Fig.3, isfa cross-section, at a m, of the helicesand helix-case.

The preparation of the artilicial-stonepaste, which 1 have described in my former patents,

. has caused me to :modify greatly the appa;

up the material, and at. the same time works it. It is provided with adjustable automatic arrangement for feeding itself with the sub; stances or materials used in my preparation ofartificial-stone paste, and, once set, will always deliver an identical product atwhatever speed it is run.

A is the frame of the machine, having at the upper end the cross-pieces B, upon-which are mounted the gearings, and at the lower part the cross-piece 0, upon which is fixed the rests or steps for the lower part of. the helices to run in. D is the cores of the helices, upon which are fastened the continuous or interrupted blades 8 S S,'&c., forming thethread of the helix. K are. wagon-wheels, mounted upon the axle I, which enable the machine to be transported thereon, and which, when the machine is in use, serve to maintaiir the malax; ator-atits proper inclination-about twentylive degrees. The brace J is used to steadythe malaxato'r. M N m N, gearings of any kind forgiving motion to the 'helices,'cither by steam, horse-power, or hand-power q, con; ical sleeves or stoppers, adj ustablc upon the shafts D, for regulating the exodus of theartiti'cial-stone paste, and by retarding the same,

increase the pressure and malaxation of the paste in the part Qof the machinerQ, body of the malaxator, corresponding inshape and sizeto the helices. (See drawing, Fig. 3.) 1",

receiving-chamber, where the materials enter the malaxator; T, sand-hopper, with its adjustable register or gate t, and, when required,

sifting a'pparatus' ii";yq,sliding gate, to allow of thedrain'age of "the machine; .8 S, feedingscrews, working in the lower-partolifw two hoppers-1t Bi, the one for lime,the other for sand or any other material or substan'ce to be introduced into the artificial-stone "paste,'

feeding the same to the chamber P; vr r; pulleys for chains or belts g, for transmittin the movement to the feeding-screws B S; .t

t, spur-wheel and pinion, (changeable for oth? ers of difierent relative speed,) for regulating the exact amount of the two substances in the hoppers R It to be delivered, infso many turns ofthe helices, into the receiving-chamber 'Pt I have contemplated feeding, -also, the water in an automatic manner by'the use of a suitable intermittent cockor reservoir cock or valve; but so far I-'prefer having a constant stream of water entering at. Z, and an overflow at W for the same, and, the sand being drowned or fully saturated, in a given proportion, by varyingthe overflow W, gives us the proper amount of water for each turn of. the helices. 1

' Hare movahlewoodeu shafts, which are placedin proper straps in the machine, and serve to hitch or harness-a horse to the same when it has to be taken from one place to another, making of'ita perfect wagon;

Without precising the details of' construction, which may be varied, the advantages I derive from the type of apparatus I have in vented are the following: First, the apparatus, having 'the receiving-ehambcr P upon the ground, isfed easily, with littlelabor, and the part Q, ordeii'very, elsvated,'allows ofa wheelv,

substantially as and for the purpose SP6 forth.

barrow or basket being placed under to-re= ceive the artificialsto'ne paste. This inclination also causes a more'powerful 'inalaxation by retarding the progress of the matter, owing to their specific gravity Second, the gearings are out of the way, away from sand, water, dust, 82c. Third, the helices having their blades interlaid, their act-ion upon the ma.- terials is of a quite different character than, when said helices are not thus conjugated. Fourth, the sand is gaged by a register. The lime and the hydraulic ceinent, the.coloringmatter, texture-giver,'or any other" material used, may be also fed automatically, and, the

machine once set by theinspector, the product is invariably the same, besides saving the labor of a hand whose trustworthiness was required to obtain good results.

The continuous introduction, bysmall and regular quantities, of the different substances, and the constant amount of water supplied to the sand, place the materials in the best of circumstances for producing by proper action of the helicesan excellent result, difficult to attain it the component ingredients had been thrown in by shovel or basket full at a time.

@ Having described in full my malaxator, what Lclaimas my inrention,.am1 desire to secure by Letters Patent of the United States, is-- 1. The inclined body or case P Q Q, in combination with the conjoint helices D 8-1) B,

2. The regulating sand-hopper, with its gate t, or equivalent device, in combination with the helices D S D S and case P Q Q.

3. The use of one or-more screws, 8, with hopper R, and of definite rotated spur-wheels and pinions t t, in combination with the helices D S D S, substantially as specified, and to the end of securing. automatic feed to the malaxator.

4. The water-pipe Z and variable overflow W, or their equivalent, to obtain the e fect specified upon the sand in the malaxator.

5. The conical adjustable sleeves q q, in combination with the piece Q and conjoint helices D S D S.

6. The combination ot'the wheels K K, body P Q Q, and shafts H H, in the manner and to the end set forth.

In testimony whereof I have signed my name to this specification before two subscribing witnesses.

i FRANQOIS OOIGNET. Witnesses EMILE BARRAULT,

17 Bus St. Martin. Delaware 41 Rue Marley. 

